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314 lines
8.2 KiB
314 lines
8.2 KiB
package process
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import (
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"bytes"
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"context"
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"io/ioutil"
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"os"
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"strconv"
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"strings"
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"github.com/shirou/gopsutil/cpu"
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"github.com/shirou/gopsutil/internal/common"
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"github.com/shirou/gopsutil/net"
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)
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type MemoryMapsStat struct {
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Path string `json:"path"`
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Rss uint64 `json:"rss"`
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Size uint64 `json:"size"`
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Pss uint64 `json:"pss"`
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SharedClean uint64 `json:"sharedClean"`
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SharedDirty uint64 `json:"sharedDirty"`
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PrivateClean uint64 `json:"privateClean"`
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PrivateDirty uint64 `json:"privateDirty"`
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Referenced uint64 `json:"referenced"`
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Anonymous uint64 `json:"anonymous"`
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Swap uint64 `json:"swap"`
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}
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type MemoryInfoExStat struct {
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}
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func pidsWithContext(ctx context.Context) ([]int32, error) {
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return readPidsFromDir(common.HostProc())
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}
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func ProcessesWithContext(ctx context.Context) ([]*Process, error) {
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out := []*Process{}
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pids, err := PidsWithContext(ctx)
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if err != nil {
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return out, err
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}
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for _, pid := range pids {
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p, err := NewProcessWithContext(ctx, pid)
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if err != nil {
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continue
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}
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out = append(out, p)
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}
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return out, nil
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}
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func (p *Process) PpidWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) NameWithContext(ctx context.Context) (string, error) {
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return "", common.ErrNotImplementedError
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}
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func (p *Process) TgidWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) ExeWithContext(ctx context.Context) (string, error) {
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exe, err := p.fillFromPathAOutWithContext(ctx)
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if os.IsNotExist(err) {
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exe, err = p.fillFromExecnameWithContext(ctx)
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}
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return exe, err
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}
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func (p *Process) CmdlineWithContext(ctx context.Context) (string, error) {
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return p.fillFromCmdlineWithContext(ctx)
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}
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func (p *Process) CmdlineSliceWithContext(ctx context.Context) ([]string, error) {
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return p.fillSliceFromCmdlineWithContext(ctx)
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}
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func (p *Process) createTimeWithContext(ctx context.Context) (int64, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) CwdWithContext(ctx context.Context) (string, error) {
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return p.fillFromPathCwdWithContext(ctx)
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}
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func (p *Process) ParentWithContext(ctx context.Context) (*Process, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) StatusWithContext(ctx context.Context) (string, error) {
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return "", common.ErrNotImplementedError
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}
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func (p *Process) ForegroundWithContext(ctx context.Context) (bool, error) {
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return false, common.ErrNotImplementedError
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}
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func (p *Process) UidsWithContext(ctx context.Context) ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) GidsWithContext(ctx context.Context) ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) GroupsWithContext(ctx context.Context) ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) TerminalWithContext(ctx context.Context) (string, error) {
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return "", common.ErrNotImplementedError
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}
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func (p *Process) NiceWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) IOniceWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) RlimitWithContext(ctx context.Context) ([]RlimitStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) RlimitUsageWithContext(ctx context.Context, gatherUsed bool) ([]RlimitStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) IOCountersWithContext(ctx context.Context) (*IOCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NumCtxSwitchesWithContext(ctx context.Context) (*NumCtxSwitchesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NumFDsWithContext(ctx context.Context) (int32, error) {
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_, fnames, err := p.fillFromfdListWithContext(ctx)
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return int32(len(fnames)), err
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}
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func (p *Process) NumThreadsWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) ThreadsWithContext(ctx context.Context) (map[int32]*cpu.TimesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) TimesWithContext(ctx context.Context) (*cpu.TimesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) CPUAffinityWithContext(ctx context.Context) ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) MemoryInfoWithContext(ctx context.Context) (*MemoryInfoStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) MemoryInfoExWithContext(ctx context.Context) (*MemoryInfoExStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) PageFaultsWithContext(ctx context.Context) (*PageFaultsStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) ChildrenWithContext(ctx context.Context) ([]*Process, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) OpenFilesWithContext(ctx context.Context) ([]OpenFilesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) ConnectionsWithContext(ctx context.Context) ([]net.ConnectionStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) ConnectionsMaxWithContext(ctx context.Context, max int) ([]net.ConnectionStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NetIOCountersWithContext(ctx context.Context, pernic bool) ([]net.IOCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) MemoryMapsWithContext(ctx context.Context, grouped bool) (*[]MemoryMapsStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) EnvironWithContext(ctx context.Context) ([]string, error) {
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return nil, common.ErrNotImplementedError
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}
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/**
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** Internal functions
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**/
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func (p *Process) fillFromfdListWithContext(ctx context.Context) (string, []string, error) {
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pid := p.Pid
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statPath := common.HostProc(strconv.Itoa(int(pid)), "fd")
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d, err := os.Open(statPath)
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if err != nil {
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return statPath, []string{}, err
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}
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defer d.Close()
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fnames, err := d.Readdirnames(-1)
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return statPath, fnames, err
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}
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func (p *Process) fillFromPathCwdWithContext(ctx context.Context) (string, error) {
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pid := p.Pid
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cwdPath := common.HostProc(strconv.Itoa(int(pid)), "path", "cwd")
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cwd, err := os.Readlink(cwdPath)
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if err != nil {
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return "", err
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}
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return cwd, nil
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}
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func (p *Process) fillFromPathAOutWithContext(ctx context.Context) (string, error) {
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pid := p.Pid
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cwdPath := common.HostProc(strconv.Itoa(int(pid)), "path", "a.out")
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exe, err := os.Readlink(cwdPath)
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if err != nil {
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return "", err
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}
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return exe, nil
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}
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func (p *Process) fillFromExecnameWithContext(ctx context.Context) (string, error) {
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pid := p.Pid
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execNamePath := common.HostProc(strconv.Itoa(int(pid)), "execname")
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exe, err := ioutil.ReadFile(execNamePath)
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if err != nil {
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return "", err
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}
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return string(exe), nil
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}
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func (p *Process) fillFromCmdlineWithContext(ctx context.Context) (string, error) {
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pid := p.Pid
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cmdPath := common.HostProc(strconv.Itoa(int(pid)), "cmdline")
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cmdline, err := ioutil.ReadFile(cmdPath)
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if err != nil {
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return "", err
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}
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ret := strings.FieldsFunc(string(cmdline), func(r rune) bool {
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if r == '\u0000' {
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return true
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}
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return false
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})
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return strings.Join(ret, " "), nil
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}
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func (p *Process) fillSliceFromCmdlineWithContext(ctx context.Context) ([]string, error) {
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pid := p.Pid
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cmdPath := common.HostProc(strconv.Itoa(int(pid)), "cmdline")
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cmdline, err := ioutil.ReadFile(cmdPath)
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if err != nil {
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return nil, err
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}
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if len(cmdline) == 0 {
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return nil, nil
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}
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if cmdline[len(cmdline)-1] == 0 {
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cmdline = cmdline[:len(cmdline)-1]
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}
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parts := bytes.Split(cmdline, []byte{0})
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var strParts []string
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for _, p := range parts {
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strParts = append(strParts, string(p))
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}
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return strParts, nil
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}
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func readPidsFromDir(path string) ([]int32, error) {
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var ret []int32
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d, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer d.Close()
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fnames, err := d.Readdirnames(-1)
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if err != nil {
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return nil, err
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}
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for _, fname := range fnames {
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pid, err := strconv.ParseInt(fname, 10, 32)
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if err != nil {
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// if not numeric name, just skip
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continue
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}
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ret = append(ret, int32(pid))
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}
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return ret, nil
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}
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